-
Downhole Motor
Drilling Jars
Hydraulic Oscillator
Drill Pipe & Drill Collar
PDC Bit & Tricone Bit
MWD
Fishing Tools
Drilling Tools
Equipment of Maintenance
CIRCULATING SUB
The Circulating Sub is connected between wellhead pipe string
and ground circulating system. When casing is running or
completed, the circulating sub can be connected to provide fluid circulation.
According to the application, circulating sub is connected between Kelly and casing or between casing and a hose.
Construction
The circulating sub during running casing is equipped with casing pin thread on one end and DP thread, DP box thread or union thread on the other.
PRODUCT QUOTE REQUEST
Enter your information below and we will contact you shortly
Copyright © 2021 Tianhe Oil Group Co. Ltd.
-
- ABOUT US
- Why us
- Certificate
- HSE
- Our Partners
-
- PRODUCTS
- Downhole Motor
- Drilling Jars
- Hydraulic Oscillator
- Drill Pipe & Drill Collar
- PDC Bit & Tricone Bit
- MWD
- Fishing Tools
- Drilling Tools
- Equipment of Maintenance
-
- SERVICES
- Sales&Rental
- Maintenance&Inspection
- Directional Drilling Services
- Fishing Services
-
- R & D
- NEWS
- CONTACT